package com.yrcm.eduapp.util;

import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;

import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

import android.content.Context;
import android.graphics.drawable.Drawable;
import android.os.AsyncTask;
import android.text.Html.ImageGetter;
import android.util.Log;
import android.widget.TextView;

public class URLImageParser implements ImageGetter {
	Context c;
	TextView container;

	/***
	 * Construct the URLImageParser which will execute AsyncTask and refresh the
	 * container
	 * 
	 * @param t
	 * @param c
	 */
	public URLImageParser(TextView t, Context c) {
		this.c = c;
		this.container = t;
	}

	public Drawable getDrawable(String source) {
		URLDrawable urlDrawable = new URLDrawable();

		// get the actual source
		ImageGetterAsyncTask asyncTask = new ImageGetterAsyncTask(urlDrawable);

		asyncTask.execute(source);

		// return reference to URLDrawable where I will change with actual image
		// from
		// the src tag
		return urlDrawable;
	}

	public class ImageGetterAsyncTask extends AsyncTask<String, Void, Drawable> {
		URLDrawable urlDrawable;

		public ImageGetterAsyncTask(URLDrawable d) {
			this.urlDrawable = d;
		}

		@Override
		protected Drawable doInBackground(String... params) {
			String source = params[0];
			return fetchDrawable(source);
		}

		@Override
		protected void onPostExecute(Drawable result) {
			// set the correct bound according to the result from HTTP call
			Log.d("height", "" + result.getIntrinsicHeight());
			Log.d("width", "" + result.getIntrinsicWidth());
			urlDrawable.setBounds(0, 0, 0 + result.getIntrinsicWidth(),
					0 + result.getIntrinsicHeight());

			// change the reference of the current drawable to the result
			// from the HTTP call
			urlDrawable.drawable = result;

			// redraw the image by invalidating the container
			URLImageParser.this.container.invalidate();

			// URLImageParser.this.container
			// .setHeight((URLImageParser.this.container.getHeight() + result
			// .getIntrinsicHeight()));
//			System.out.println("==txt====" + container.getText());
			container.setText(container.getText());
			// Pre ICS
			// URLImageParser.this.container.setEllipsize(null);
		}

		/***
		 * Get the Drawable from URL
		 * 
		 * @param urlString
		 * @return
		 */
		public Drawable fetchDrawable(String urlString) {
			try {
				InputStream is = fetch(urlString);
				Drawable drawable = Drawable.createFromStream(is, "src");
				drawable.setBounds(0, 0, 0 + drawable.getIntrinsicWidth(),
						0 + drawable.getIntrinsicHeight());
				return drawable;
			} catch (Exception e) {
				return null;
			}
		}

		private InputStream fetch(String urlString)
				throws MalformedURLException, IOException {
			DefaultHttpClient httpClient = new DefaultHttpClient();
			HttpGet request = new HttpGet(urlString);
			HttpResponse response = httpClient.execute(request);
			return response.getEntity().getContent();
		}
	}
}